1. Disorders of hair growth,2003
2. Hair anatomy for the clinician;Sperling;J Am Acad Dermatol,1991
3. Embryology and anatomy of the hair follicle;Abell,1994
4. Hair structure anatomy and comparative anatomy;Jones;Clin Dermatol,2001
5. Structure and function of the hair follicle;Forslind,2000